CN211009804U - Three-gear assembly of automobile transmission - Google Patents
Three-gear assembly of automobile transmission Download PDFInfo
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- CN211009804U CN211009804U CN201922010970.0U CN201922010970U CN211009804U CN 211009804 U CN211009804 U CN 211009804U CN 201922010970 U CN201922010970 U CN 201922010970U CN 211009804 U CN211009804 U CN 211009804U
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Abstract
The utility model provides an automotive transmission three keep off gear assembly belongs to the automobile parts field. It has solved the current not good problem of third gear structural stability. The automobile transmission three-gear assembly comprises a transmission gear and a combination gear, wherein an annular connecting part is arranged on the transmission gear, the combination gear is sleeved outside the connecting part, the combination gear is fixedly connected with the connecting part in a welding mode, a gasket is sleeved outside the connecting part, two end faces of the gasket are respectively abutted against the combination gear and the transmission gear, positioning columns are integrally formed on end faces of the transmission gear, which are contacted with the gasket, the axes of the positioning columns are parallel to the transmission gear, clamping holes which are axially arranged in a penetrating mode along the transmission gear are formed in the gasket, the shapes and the sizes of the clamping holes are matched with the positioning columns, the number of the clamping holes is the same as that of the positioning columns, each positioning column is clamped in the corresponding; the inner side wall of the combination tooth is provided with an internal thread, and the outer side wall of the connecting part is provided with an external thread meshed with the internal thread. This automotive transmission third gear assembly structure is comparatively stable.
Description
Technical Field
The utility model belongs to the automobile parts field relates to an automotive transmission, especially an automotive transmission third gear assembly.
Background
The transmission generally includes an input shaft, an output shaft, an intermediate shaft, gears sleeved on the input shaft, the intermediate shaft and the output shaft, and a synchronizer. The axial leads of the input shaft and the output shaft are on the same straight line but are not connected with each other, and the axial lead of the intermediate shaft is parallel to the axial lead of the input shaft. The input shaft is sleeved with driven gears of all gears; the output shaft is movably sleeved with a driving gear of each gear; the synchronizer is fixedly arranged on the output shaft and positioned between the driving gears, and can be combined with or separated from the combined teeth of the adjacent gears under the action of the shifting fork.
A third gear is a type of transmission gear, which is an active third gear of an automotive transmission as disclosed in chinese patent application No. [ application number: 201220319634.X ] comprises a gear body, an outer gear tooth and a combination tooth, wherein the outer gear tooth is used for meshing and transmitting power, the combination tooth is arranged on the outer circumferential surface of the gear body, a friction frustum is arranged on the end surface, close to the combination tooth, of the gear body, and a retaining ring is arranged between the outer gear tooth and the combination tooth.
The above-mentioned three-gear has a problem: the gasket has a circumferential rotation tendency when subjected to a force, and this tendency is suppressed by a frictional force generated between the outer gear teeth and the coupling teeth, resulting in that a welding liquid for connecting the coupling teeth and the body is easily dropped over time, resulting in a failure of the entire structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims at having the above-mentioned problem to current technique, provided a stable in structure's automotive transmission three keep off gear assembly.
The purpose of the utility model can be realized by the following technical proposal: the automobile transmission three-gear assembly is characterized in that positioning columns are integrally formed on end faces of the transmission teeth, which are in contact with the gaskets, the axes of the positioning columns are parallel to the transmission teeth, the positioning columns are at least two and are uniformly distributed along the circumferential direction of the transmission teeth, clamping holes which are axially arranged along the transmission teeth in a penetrating mode are formed in the gaskets, the shapes and the sizes of the clamping holes are matched with the positioning columns, the clamping holes and the positioning columns are the same in number and are aligned with one another, each positioning column is clamped in the corresponding clamping hole, and the length of each positioning column is smaller than that of the clamping hole; the inner side wall of the combination tooth is provided with an internal thread, and the outer side wall of the connecting part is provided with an external thread meshed with the internal thread.
The installation process is as follows: the gasket is placed on the transmission gear, the positioning column is clamped in the corresponding clamping hole, then the combination gear is screwed to tightly press the gasket on the transmission gear, and finally the combination gear and the connecting portion are fixedly connected in a welding mode.
The connecting part and the combining teeth are in meshed rotary connection through the internal threads and the external threads, so that the gasket is clamped between the transmission teeth and the combining teeth more conveniently and simply to facilitate the assembly of the whole assembly. Secondly, under reference column and the cooperation of card hole, effectively restrict the gasket in circumference and rotate to effectively improve the compressive capacity of gasket, thereby improve gear assembly's life-span and structural stability.
In the automobile transmission three-gear assembly, the side wall of one end, close to the combination teeth, of the positioning column is provided with a conical guide surface, so that the positioning column can be well guided to be inserted into the clamping hole, and the assembly is facilitated.
In the above automotive transmission three-gear assembly, an annular groove for filling welding liquid is formed between the inner wall of one end of the combination tooth, which is far away from the gasket, and the outer wall of the connecting part, and the annular groove and the combination tooth are coaxially arranged.
In the automobile transmission three-gear assembly, the two end faces of the gasket are respectively provided with anti-skid textures.
Compared with the prior art, this automotive transmission third gear assembly has following advantage:
1. the connecting part and the combining teeth are in meshed rotary connection through the internal threads and the external threads, so that the gasket is clamped between the transmission teeth and the combining teeth more conveniently and simply to facilitate the assembly of the whole assembly.
2. Under the cooperation of the positioning column and the clamping hole, the gasket is effectively limited to rotate in the circumferential direction, so that the pressure bearing capacity of the gasket is effectively improved, and the service life and the structural stability of the gear assembly are improved.
Drawings
FIG. 1 is a schematic structural diagram of a three-speed gear assembly of the automobile transmission.
Fig. 2 is an enlarged schematic view of a structure at a in fig. 1.
In the figure, 1, a transmission gear; 1a, a connecting part; 1b, a positioning column; 1b1, guide surface; 2. a coupling tooth; 3. a gasket; 3a, clamping holes; 4. an annular groove.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in figure 1, the three-gear assembly of the automobile transmission comprises a transmission gear 1 and a combination gear 2, wherein the transmission gear 1 is provided with an annular connecting part 1a, and the connecting part 1a and the transmission gear 1 are of an integrated structure and are coaxially arranged. The combination tooth 2 cover is outside connecting portion 1a, and the inside wall of combination tooth 2 and the lateral wall of connecting portion 1a are the periphery that matches each other, and 2 inside walls of combination tooth and the lateral wall of connecting portion 1a paste and lean on, and combine tooth 2 to link firmly with connecting portion 1a through the welding mode.
Specifically, as shown in fig. 1 and 2, the connecting portion 1a is further sleeved with a washer 3, and two end surfaces of the washer 3 respectively abut against the end surface of the coupling tooth 2 and the end surface of the transmission tooth 1. The end face of the contact between the transmission gear 1 and the gasket 3 is integrally provided with positioning columns 1b, the axes of the positioning columns 1b are parallel to the transmission gear 1, and the positioning columns 1b are at least two and are uniformly distributed along the circumferential direction of the transmission gear 1. The number of the positioning columns 1b is determined according to the size of the gear assembly, and can be 2, 3, 4 and the like. Have on the gasket 3 along the card hole 3a that the setting was run through to driving gear 1 axial, the shape and the size in card hole 3a all match with reference column 1b, and card hole 3a is the same with reference column 1b quantity and the position is just right one by one, and every reference column 1b all blocks and establishes in the card hole 3a that corresponds, and reference column 1b length is less than card hole 3a length. Further, the side wall of the positioning column 1b near one end of the combining tooth 2 is provided with a conical guiding surface 1b1, which plays a better guiding role for inserting the positioning column 1b into the clamping hole 3a, so as to facilitate assembly. The inner side wall of the combination tooth 2 is provided with an internal thread, and the outer side wall of the connecting part 1a is provided with an external thread meshed with the internal thread. The installation process is as follows: the gasket 3 is placed on the transmission gear 1, the positioning column 1b is clamped in the corresponding clamping hole 3a, then the combination gear 2 is screwed to compress the gasket 3 on the transmission gear 1, and finally the combination gear 2 and the connecting part 1a are fixedly connected in a welding mode.
As shown in fig. 1, an annular groove 4 for filling the welding liquid is formed between an inner wall of one end of the coupling tooth 2 remote from the gasket 3 and an outer wall of the connecting portion 1a, and the annular groove 4 and the coupling tooth 2 are coaxially arranged. One side of the annular groove 4 close to the gasket 3 is closed, and the other side of the annular groove 4 is open. Both end surfaces of the pad 3 are provided with anti-slip textures (not shown) to enhance frictional force between the pad 3 and the coupling teeth 2 and the gear teeth 1.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (4)
1. Three-gear assembly of automobile transmission, including driving gear (1) and combination tooth (2), have annular connecting portion (1a) on driving gear (1), combination tooth (2) cover is outside connecting portion (1a), and combination tooth (2) link firmly with connecting portion (1a) through the welding mode, connecting portion (1a) still overlaps outward and has gasket (3), and the both ends face of gasket (3) offsets with combination tooth (2) and driving gear (1) respectively, its characterized in that, integrated into one piece has reference column (1b) on the terminal surface that driving gear (1) and gasket (3) contact, and the axis of reference column (1b) is parallel with driving gear (1), reference column (1b) have two at least and along the circumference equipartition of driving gear (1), gasket (3) on have along the axial through setting of driving gear (1) card hole (3a), the shape and the size of card hole (3a) all match with reference column (1b), the number of the clamping holes (3a) is the same as that of the positioning columns (1b), the positioning columns (1b) are opposite to one another, each positioning column (1b) is clamped in the corresponding clamping hole (3a), and the length of each positioning column (1b) is smaller than that of each clamping hole (3 a); the inner side wall of the combination tooth (2) is provided with an internal thread, and the outer side wall of the connecting part (1a) is provided with an external thread meshed with the internal thread.
2. The automotive transmission third gear assembly according to claim 1, characterized in that the side wall of the positioning column (1b) near the end of the coupling tooth (2) is provided with a conical guide surface (1b 1).
3. The automotive transmission third gear assembly according to claim 1 or 2, characterized in that an annular groove (4) for filling the welding liquid is formed between the inner wall of the coupling tooth (2) at the end away from the gasket (3) and the outer wall of the connecting portion (1a), and the annular groove (4) and the coupling tooth (2) are coaxially arranged.
4. The automotive transmission third gear assembly according to claim 1 or 2, characterized in that both end faces of the gasket (3) are provided with anti-slip textures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922010970.0U CN211009804U (en) | 2019-11-19 | 2019-11-19 | Three-gear assembly of automobile transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922010970.0U CN211009804U (en) | 2019-11-19 | 2019-11-19 | Three-gear assembly of automobile transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211009804U true CN211009804U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922010970.0U Active CN211009804U (en) | 2019-11-19 | 2019-11-19 | Three-gear assembly of automobile transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211009804U (en) |
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2019
- 2019-11-19 CN CN201922010970.0U patent/CN211009804U/en active Active
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